There are lots of reasons to search for planets around other stars—exoplanets. A big one is to find other places in the universe that might harbor life. We only know of one ...

PBS KIDS celebrates Earth Month by inviting families to be planet heroes. PBS KIDS celebrates Earth Month by inviting families to be planet heroes. Enjoy a new movie from “Activate Kid Power” from ...

BOSTON -- When scientists wanted to explore what kind of life might exist on Mars, public television's "NOVA" recorded the building and launch of the rovers sent to the planet. Now, a year later, the ...

Temperatures on the planet could make water theoretically possible. Astronomers are researching an Earth-like exoplanet that could contain water, according to NASA. The exoplanet, named TRAPPIST-1 e, ...